package com.itheima.reggie.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.itheima.reggie.common.R;
import com.itheima.reggie.dto.DishDto;
import com.itheima.reggie.entity.Dish;
import com.itheima.reggie.entity.DishFlavor;
import com.itheima.reggie.mapper.DishMapper;
import com.itheima.reggie.service.DishFlavorService;
import com.itheima.reggie.service.DishService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.RequestParam;

import java.util.List;
import java.util.stream.Collectors;

@Service
@Slf4j
public class DishServiceImpl extends ServiceImpl<DishMapper, Dish> implements DishService {

    @Autowired
    private DishFlavorService dishFlavorService;

    /**
     * 新增菜品，同时保存对应的口味数据
     * @param dishDto
     */
    @Transactional
    public void saveWithFlavor(DishDto dishDto) {
        //保存菜品的基本信息到菜品表dish
        this.save(dishDto);

        Long dishId = dishDto.getId();//菜品id

        //菜品口味
        List<DishFlavor> flavors = dishDto.getFlavors();
        flavors = flavors.stream().map((item) -> {
            item.setDishId(dishId);
            return item;
        }).collect(Collectors.toList());

        //保存菜品口味数据到菜品口味表dish_flavor
        dishFlavorService.saveBatch(flavors);

    }

    /**
     * 根据id查询菜品信息和对应的口味信息
     * @param id
     * @return
     */
    public DishDto getByIdWithFlavor(Long id) {
        //查询菜品基本信息，从dish表查询
        Dish dish = this.getById(id);

        DishDto dishDto = new DishDto();
        BeanUtils.copyProperties(dish,dishDto);

        //查询当前菜品对应的口味信息，从dish_flavor表查询
        LambdaQueryWrapper<DishFlavor> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(DishFlavor::getDishId,dish.getId());
        List<DishFlavor> flavors = dishFlavorService.list(queryWrapper);
        dishDto.setFlavors(flavors);


        return dishDto;
    }


    //修改
    @Override
    @Transactional
    public void updateWithFlavor(DishDto dishDto) {
        //更新dish表基本信息
        this.updateById(dishDto);

        //清理当前菜品对应口味数据---dish_flavor表的delete操作
        LambdaQueryWrapper<DishFlavor> queryWrapper = new LambdaQueryWrapper();
        queryWrapper.eq(DishFlavor::getDishId,dishDto.getId());

        dishFlavorService.remove(queryWrapper);

        //添加当前提交过来的口味数据---dish_flavor表的insert操作
        List<DishFlavor> flavors = dishDto.getFlavors();

        flavors = flavors.stream().map((item) -> {
            item.setDishId(dishDto.getId());
            return item;
        }).collect(Collectors.toList());

        dishFlavorService.saveBatch(flavors);
    }

//    /**
//     * 更新菜品状态/批量更新菜品状态
//     *
//     * @param status
//     * @param ids
//     * @return
//     */
//    @Override
//    public boolean updateStatus(Integer status, List<Long> ids) {
//
//        //条件查询器
//        LambdaUpdateWrapper<Dish> luw = new LambdaUpdateWrapper();
//        luw.in(Dish::getId, ids).set(Dish::getStatus, status);
//
//        boolean flag = this.update(luw);
//
//        return flag;
//
//    }
//
//
    /**
     * 删除菜品/批量删除菜品(逻辑删除
     *
     * @param ids
     * @return
     */
    @Override
    public boolean deleteWithFlavor(List<Long> ids) {

        //根据条件删除dish_flavor表的口味数据
        //初始化条件更新器(逻辑删除菜品口味
//        LambdaUpdateWrapper<DishFlavor> lambdaUpdateWrapper = new LambdaUpdateWrapper();
//
//        //设置更新条件--in (ids).set(逻辑删除字段,1)
//        lambdaUpdateWrapper.in(DishFlavor::getDishId, ids).set(DishFlavor::getIsDeleted, 1);
//
//        //逻辑删除菜品口味
//        dishFlavorService.update(lambdaUpdateWrapper);

        //逻辑删除菜品

//        for (Long id : ids) {
//            Dish dish = this.getById(id);
//            System.out.println(dish.toString());
//            dish.setIsDeleted(1);
//            dish.setName("我要疯了+1");
//            System.out.println(dish.toString());
//            boolean b = this.updateById(dish);
//            System.out.println("看我看我看我---------------------"+b);
//            System.out.println(dish);
//        }
//        return true;
//
        LambdaUpdateWrapper<Dish> luwD = new LambdaUpdateWrapper();


        luwD.in(Dish::getId, ids).set(Dish::getIsDeleted, 1);

        boolean flag = this.update(luwD);

        return flag;
    }


}
